Commit 7942b226 authored by Genjian Zhang's avatar Genjian Zhang Committed by Jens Axboe
Browse files

null_blk: Fix the description of the cache_size module argument 



When executing modinfo null_blk, there is an error in the description
of module parameter mbps, and the output information of cache_size is
incomplete.The output of modinfo before and after applying this patch
is as follows:

Before:
[...]
parm:           cache_size:ulong
[...]
parm:           mbps:Cache size in MiB for memory-backed device.
		Default: 0 (none) (uint)
[...]

After:
[...]
parm:           cache_size:Cache size in MiB for memory-backed device.
		Default: 0 (none) (ulong)
[...]
parm:           mbps:Limit maximum bandwidth (in MiB/s).
		Default: 0 (no limit) (uint)
[...]

Fixes: 058efe00 ("null_blk: add module parameters for 4 options")
Signed-off-by: default avatarGenjian Zhang <zhanggenjian@kylinos.cn>
Reviewed-by: default avatarDamien Le Moal <dlemoal@kernel.org>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 995412e2

drivers/block/null_blk/main.c

+1 −1
Original line number Diff line number Diff line
@@ -223,7 +223,7 @@ MODULE_PARM_DESC(discard, "Support discard operations (requires memory-backed nu 


static unsigned long g_cache_size;

module_param_named(cache_size, g_cache_size, ulong, 0444);

MODULE_PARM_DESC(mbps, "Cache size in MiB for memory-backed device. Default: 0 (none)");

MODULE_PARM_DESC(cache_size, "Cache size in MiB for memory-backed device. Default: 0 (none)");



static bool g_fua = true;

module_param_named(fua, g_fua, bool, 0444);